气候变化领域集成服务门户(CCPortal): Relative importance of meteorological variables on air quality and role of boundary layer height

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DOI	10.1016/j.atmosenv.2021.118737
	Relative importance of meteorological variables on air quality and role of boundary layer height
	Huang Y.; Guo B.; Sun H.; Liu H.; Chen S.X.
发表日期	2021
ISSN	1352-2310
卷号	267
英文摘要	To gain insight on the meteorological effects of air pollution, we study the relative importance of surface meteorological variables and boundary layer height (BLH) on six major air pollutants according to the orders of variables being selected in a forward variable selection algorithm. It is found that there was a strong agreement in the orders of relative importance for the major pollutants among six major cities in North China, which implies regularities in the meteorological processes of air pollution in that region. In particular, PM2.5, PM10, SO2 and CO shared a common variable importance order and were mostly impacted by the dew point temperature and air pressure, while the NO2 and O3 were mostly influenced by the boundary layer height (BLH) and temperature, respectively. We evaluate the impacts of BLH on the pollution levels given the surface meteorological variables. It is found that BLH can be well modeled by the surface meteorological variables. Thus, air quality assessment without using BLH would also produce adequate results. © 2021 Elsevier Ltd
关键词	Air quality assessment Meteorological effects Statistical learning Variable selection
语种	英语
scopus关键词	Boundary layer flow; Boundary layers; Air pollutants; Air quality assessment; Boundary layer heights; Gain insight; Meteorological effects; Meteorological variables; Order of variables; Statistical learning; Variable selection algorithms; Variables selections; Air quality; carbon dioxide; nitrogen dioxide; ozone; sulfur oxide; air quality; atmospheric pollution; boundary layer; dew point; height; meteorology; pollutant source; pollution effect; air pollution; air pressure; air quality; air temperature; algorithm; Article; boundary layer; boundary layer height; clinical evaluation; dew point temperature; environmental temperature; height; learning; meteorological phenomena; meteorology; particulate matter 10; particulate matter 2.5; surface property; China
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248190
作者单位	Yuanpei College, Peking University, Beijing, 100871, China; Center of Statistical Research and School of Statistics, Southwestern University of Finance and Economics, Chengdu, 611130, China; Center for Data Science, Peking University, Beijing, 100871, China; The Experimental High School Attached To Beijing Normal University, Beijing, 100032, China; School of Mathematical Sciences, Guanghua School of Management and Center for Statistical Science, Peking University, Beijing, 100871, China
推荐引用方式 GB/T 7714	Huang Y.,Guo B.,Sun H.,et al. Relative importance of meteorological variables on air quality and role of boundary layer height[J],2021,267.
APA	Huang Y.,Guo B.,Sun H.,Liu H.,&Chen S.X..(2021).Relative importance of meteorological variables on air quality and role of boundary layer height.ATMOSPHERIC ENVIRONMENT,267.
MLA	Huang Y.,et al."Relative importance of meteorological variables on air quality and role of boundary layer height".ATMOSPHERIC ENVIRONMENT 267(2021).